Window frame construction



July 4, 1967 F. E. KNIPPER WINDOW FRAME CONSTRUCTION 2 Sheets-Sheet 1 Filed May .5, 1965 INVENTOR.

FRANCIS E. KNIPPER MQL ATTORNEY July 4, 1967 F. E. KNIPPER WINDOW FRAME CONSTRUCTION Filed May 5, 1965 2 Sheets-Sheet 2 INVENTOR.

FRANCIS E. KNIPPER ATTORNEY United States Patent 3,328,930 WINDOW FRAME CONSTRUCTION Francis E. Knipper, 299 Connecticut St., Hollywood, Fla. 33020 Filed May 5, 1965, Ser. No. 453,379 2 Claims. (Cl. 52204) ABSTRACT OF THE DISCLOSURE A molded concrete window frame particularly adapted for the reception of a jalousie window, the frame having a header, a sill and connecting jamb members all of which elements are of concrete, the jambs and header being mitered at their points of meeting, the jambs, header and sill being each provided with an inwardly extending rib extending completely around the inside of the frame and serving as a mounting for the jalousie frame. At the meeting of the jambs and headers, slots provided in said jambs and headers co-operate in forming right angle grooves, and angular brackets are fitted in said grooves, the brackets being covered and concealed by concrete.

This invention relates to a precast concrete frame for insertion into an opening of a concrete block wall and whereby to fixedly support a conventional jalousie window.

The invention contemplates a frame molded in four parts, including a header, a sill and connecting jambs and wtih the jambs at their upper ends and the header at its opposite ends being mitered to have abutment with each other and with the lower end of the jambs being shaped to conform to the window sill and to have locking engagement therewith against movement.

The frame members embodying the header, the sill and the connecting jambs each being provided an inwardly extending rib against which the metallic frame of the jalousie window may be fixed and with the ribs being provided with threaded sockets that receive threaded fastening devices that pass through a flange formed on the metallic window.

Novel features of construction and operation of the device will be more clearly apparent during the course of the following description, reference being had to the accompanying drawings wherein has been illustrated a preferred form of the device and wherein like characters of reference are employed to denote like parts.

In the drawings:

FIGURE 1 is an elevational view of the molded frame mounted within a wall opening,

FIGURE 2 is a vertical section taken substantially on line 22 of FIGURE 1,

FIGURE 3 is a horizontal section taken substantially on line 3 3 of FIGURE 1,

FIGURE 4 is a fragmentary composite perspective view of the frame members embodying that portion of the frame shown at line 44 of FIGURE 1,

FIGURE 5 is a fragmentary section taken substantially on line 5-5 of FIGURE 4,

FIGURE 6 is a view similar to FIGURE 4 but with the parts exploded and prior to assembly, and

FIGURE 7 is a fragmentary perspective view illustrating a locking means for the upper mitered corners of the device.

Referring specifically to the drawings, a conventional concrete block wall has been illustrated at 5 and provided with a wall opening 6. Adapted to have fitment within the wall opening 6 as shown particularly in FIG- URES 3, 4 and 5, is a molded concrete wall frame indicated as a whole by the numeral 7. The frame 7 includes a sill 8, a header 9 and jamb members 10. The sill 8 upon its upper side is provided with a generally square or rectangular rib 11 and the sill is provided with an in- Ward extension 12 that is fiat and upon which is adapted to be positioned tile or the like 13. The sill at its outer side is inclined at 14 to form a drip for water. The rib 11 is provided with a plurality of threaded sockets 15 for the reception of screws that pass through the metallic window frame indicated in dotted lines in FIGURES 2 and 3 at 16.

The jamb members 10 are formed with square or rectangular ribs 17 and the base portion of the jambs 10 have a width corresponding to the wall opening 6 and extend out beyond the wall opening to receive finish plaster 18 and stucco 19. The sill and the jambs are suitably reinforced by reinforcing wire indicated at 20. The jamb members are adapted to rest upon the top of the sill 8 and the end of the rib 11 has been cut away, as illustrated in FIGURES 5 and 6 to receive the lower end of the jamb members and with the ribs 17 adapted to rest upon the ribs 11 and the ribs 17 at their lower ends are provided with dowel pins 21 that have fitment into recesses 22 of the rib 11. The rib 17 and the jambs is also provided with a plurality of threaded sockets 23 adapted to receive threaded fastening devices that extend through openings in the metallic frame 16.

The jambs 10 at their upper ends are mitered as shown at 24, for mitering engagement with mitered ends 25 of the header 9. The forward side of the header 9 and the upper ends of the jambs 10 are grooved as indicated at 26, for reception of L-shaped clamps 27, that have fitment into the grooves 26 to prevent spreading of the upper end of the frame and to maintain the frame in a substantially square position. The header 9 is also provided with a rib 28, corresponding to the ribs 11 and 17 and whereby the ribs extend entirely around the inner face of the frame, defining an opening for the window frame 16. The several members constituting the frame are all molded in a suitable mold prior to assembly and installation into the wall opening 6.

In use, the several parts, including the sill, the jambs and the header may be initially assembled or, the sill may be placed at the bottom of the wall opening 6 and into a bed of cement after which the jamb members are engaged thereon and locked together by the dowels 21. The header is then shifted into position to engage the mitered ends of the jambs and the header at which time the brackets 27 are engaged into the slots 26 and to the bottom of the slots and with the brackets 27 being subsequently covered with cement. The sides of the jambs, the top of the header and the bottom of the sill may be grooved, as indicated at 29, to form a lock for the frame member within the wall when the opening is provided with a coating of cement and the frame will thus be held in accurate position vertically by the engagement of the bottom of the jambs into the cut away of the sill ends and with the dowels being engaged in the openings 22 also, the brackets 27 will additionally hold the frame in an accurate position against spreading at the top. A conventional window frame such as an aluminum jalousie frame is then inserted through the opening defined by the ribs 11, 17 and 28, all being in accurate alignment when the frame is assembled and the fastening screws then pass through openings in the metallic frame to have threaded engagement with the threaded sockets in the ribs, rigidly holding the metallic frame against shifting.

It will be apparent from the foregoing that a very novel mounting frame for jalousie windows or the like may be molded in a suitable mold and in separate parts for subsequent assembly into the wall opening, greatly simplifying the mounting of the windows. The forming of the several parts from concrete avoids any deterioration and it is contemplated that the frame will be formed Patented July 4, 1967 in various sizes for windows of varying dimensions. The device is strong, durable, cheap to manufacture and most effective as a mounting means for windows within openings formed in a concrete block wall or possibly a brick wall or the like.

The reveal of the frame may be formed in any desirable configuration for ornamental purposes. The projection of the frame beyond the wall establishes a guide line for the plasterer or the stucco man in determining the thickness of the stucco or the plaster.

It is to be understood that the invention is not limited to the precise construction shown, but that changes are contemplated as readily fall within the spirit of the invention as shall be determined by the scope of the subjoined claims.

I claim:

1. A molded concrete window frame for the reception of jalousie windows and with the frame adapted to have fitment into wall opening, the frame having a header, a sill and connecting jamb members all separately molded from concrete and assembled into the window opening, the upper ends of the jambs and the opposite ends of the header being mitered and with the lower ends of the jambs having an interlocking engagement with the sill member, each of the members being provided with an inwardly extending rib and with the rib at assembly of the frame extending entirely around the inner circumference thereof, the mitered corners of the jambs and header being slotted to provide a right-angle groove, and an L-shaped bracket fitted in said groove and covered by concrete.

2. A window frame of the character described that is molded from concrete in separate units, comprising a header, a sill and connecting jambs, the frame adapted to be installed within a preformed opening of a concrete block wall and to substantially conform to the size of the opening, the jambs at their upper ends and the header at its opposite ends being mitered and means embedded within the mitered corners of the frame to maintain the jambs and the header against movement, the sill at its opposite ends being cut away to receive a lower end of the jambs with the ends of the jambs abutting the top of the sill in conforming relation, the header, the sill and the jambs being formed of reinforced concrete, each of the members, including the jambs, the header and the sill being provided with an integral inwardly extending rib and with all of the ribs upon assembly of the frame being in alignment thereby to form an abutment that extends around the inner sides of the frame and constituting an attaching means for flanges carried by a metallic frame window, the mitered corners of the header and jambs being grooved, an L-shaped bracket fitting into the grooves to a depth below the surface of the header and jambs, said bracket being covered with concrete.

References Cited UNITED STATES PATENTS 2,166,870 7/1939 Livesay 49504 X 2,705,415 4/1955 Livesay 52204 3,025,640 3/1962 Mahr 52-204 X 3,230,676 1/1966 Dixon 52204 DAVID J. WILLIAMOWSKY, Primary Examiner.

KENNETH DOWNEY, Examiner. 

1. A MOLDED CONCRETE WINDOW FRAME FOR THE RECEPTION OF JALOUSIE WINDOWS AND WITH THE FRAME ADAPTED TO HAVE FITMENT INTO WALL OPENING, THE FRAME HAVING A HEADER, A SILL AND CONNECTING JAMB MEMBERS ALL SEPARATELY MOLDED FROM CONCRETE AND ASSEMBLED INTO THE WINDOW OPENING, THE UPPER ENDS OF THE JAMBS AND THE OPPOSITE ENDS OF THE HEADER BEING MITERED AND WITH THE LOWER ENDS OF THE JAMBS HAVING AN INTERLOCKING ENGAGEMENT WITH THE SILL MEMBER, EACH OF THE MEMBERS BEING PROVIDED WITH AN INWARDLY EXTENDING RIB AND WITH THE RIB AT ASSEMBLY OF THE FRAME EXTENDING ENTIRELY AROUND THE INNER CIRCUMFERENCE THEREOF, THE MITERED CORNERS OF THE JAMBS AND HEADER BEING SLOTTED TO PROVIDE A RIGHT-ANGLE GROOVE, AND AN L-SHAPED BRACKET FITTED IN SAID GROOVE AND COVERED BY CONCRETE. 